Structured Query Language (SQL) is a programming language used to manage and manipulate relational databases. SQL is used by data analysts and data scientists for extracting, transforming, and analyzing data stored in databases. In this blog, we will discuss the most commonly used SQL functions that are used in real-world problems and can help solve up to 80% of the work required in data analysis. SELECT: SELECT is the most frequently used SQL function. It is used to retrieve data from one or more tables in a database. This function allows you to select specific columns, rows, or a combination of both from a table. The syntax for the SELECT statement is: SELECT column_name(s) FROM table_name WHERE: The WHERE function is used to filter data from a table based on a specific condition. It is used in combination with the SELECT function to retrieve specific data. The syntax for the WHERE statement is: SELECT column_name(s) FROM table_name WHERE condition GROUP BY: The GROUP BY function is ...